See the full article here on The Conversation, which draws heavily on our work on perfume and body odour blends:
Lenochova P, Vohnoutova P, Kubena A, Roberts SC, Oberzaucher E, Grammer K, Havlicek J. 2012. Psychology of fragrance use: perception of individual odor and perfume blends reveals a mechanism for idiosyncratic effects on fragrance choice. PLoS One e33810.